2 # Copyright (C) 2006-2009 OpenWrt.org
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
7 include $(TOPDIR)/rules.mk
9 KERNEL_BUILD_DIR := $(BUILD_DIR_TOOLCHAIN)
10 BUILD_DIR := $(KERNEL_BUILD_DIR)
15 include $(INCLUDE_DIR)/kernel.mk
18 PKG_VERSION:=$(LINUX_VERSION)
19 PKG_SOURCE:=$(LINUX_SOURCE)
20 PKG_SOURCE_URL:=$(LINUX_SITE)
21 HOST_BUILD_DIR:=$(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
22 PKG_MD5SUM:=$(LINUX_KERNEL_MD5SUM)
23 LINUX_DIR := $(HOST_BUILD_DIR)
26 include $(INCLUDE_DIR)/toolchain-build.mk
27 include $(INCLUDE_DIR)/kernel-defaults.mk
29 ifeq ($(strip $(BOARD)),uml)
30 LINUX_KARCH:=$(subst x86_64,x86,$(subst i386,x86,$(ARCH)))
33 ifeq ($(strip $(call CompareKernelPatchVer,$(KERNEL_PATCHVER),ge,2.6.18)),1)
34 LINUX_HAS_HEADERS_INSTALL:=y
37 ifeq ($(strip $(call CompareKernelPatchVer,$(KERNEL_PATCHVER),ge,2.6.33)),1)
38 LINUX_ASM_INCLUDES:=arch/$(LINUX_KARCH)/include/asm
40 LINUX_ASM_INCLUDES:=include/asm
43 KMAKE := $(MAKE) -C $(HOST_BUILD_DIR) \
48 define Host/Prepare/pre/powerpc
49 if [ -d $(HOST_BUILD_DIR)/include/asm-ppc ]; then \
50 mkdir -p $(PKG_BUILD_DIR)/include/asm-powerpc/; \
51 $(CP) $(HOST_BUILD_DIR)/include/asm-ppc/* $(HOST_BUILD_DIR)/include/asm-powerpc/; \
52 rm -rf $(HOST_BUILD_DIR)/include/asm-ppc; \
53 ln -s $(HOST_BUILD_DIR)/include/asm-powerpc $(HOST_BUILD_DIR)/include/asm-ppc; \
57 ifneq ($(LINUX_HAS_HEADERS_INSTALL),)
58 define Host/Prepare/all
59 mkdir -p $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr
61 CROSS_COMPILE=$(TARGET_CROSS) \
62 INSTALL_HDR_PATH="$(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/" \
66 define Host/Prepare/all
67 mkdir -p $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include
68 cp -pLR $(HOST_BUILD_DIR)/include/asm $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/
69 cp -pLR $(HOST_BUILD_DIR)/include/asm-generic $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/
70 cp -pLR $(HOST_BUILD_DIR)/include/asm-$(LINUX_KARCH) $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/
71 cp -pLR $(HOST_BUILD_DIR)/include/linux $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/
75 # XXX: the following is needed to build lzma-loader
76 define Host/Prepare/lzma
78 $(HOST_BUILD_DIR)/include/asm-mips/asm.h \
79 $(HOST_BUILD_DIR)/include/asm-mips/regdef.h \
80 $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/asm/
83 define Host/Prepare/post/cris
85 $(HOST_BUILD_DIR)/include/linux/user.h \
86 $(HOST_BUILD_DIR)/include/linux/autoconf.h \
87 $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/linux/
88 ln -snf $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/arch-v10/arch \
89 $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/arch
90 $(SED) '/#include <asm\/page\.h>/d' $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/asm/user.h
93 define Host/Prepare/post/ubicom32
95 $(HOST_BUILD_DIR)/arch/ubicom32/include/asm/elf.h \
96 $(HOST_BUILD_DIR)/arch/ubicom32/include/asm/user.h \
97 $(HOST_BUILD_DIR)/arch/ubicom32/include/asm/page.h \
98 $(HOST_BUILD_DIR)/arch/ubicom32/include/asm/page_offset.h \
99 $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/asm/
102 define Host/Prepare/post/mips
103 $(call Host/Prepare/lzma)
106 define Host/Prepare/post/mipsel
107 $(call Host/Prepare/lzma)
111 $(call Kernel/Prepare/Default)
112 ln -sf linux-$(LINUX_VERSION) $(BUILD_DIR_TOOLCHAIN)/linux
113 $(SED) 's/@expr length/@-expr length/' $(HOST_BUILD_DIR)/Makefile
114 yes '' | $(KMAKE) oldconfig
115 $(KMAKE) include/linux/version.h $(LINUX_ASM_INCLUDES)
116 if [ -d $(HOST_BUILD_DIR)/arch/$(LINUX_KARCH)/include/asm ]; then \
118 $(HOST_BUILD_DIR)/arch/$(LINUX_KARCH)/include/asm/. \
119 $(HOST_BUILD_DIR)/include/asm-$(LINUX_KARCH)/; \
121 $(call Host/Prepare/pre/$(ARCH))
122 $(call Host/Prepare/all)
123 $(call Host/Prepare/post/$(ARCH))
126 define Host/Configure
133 $(CP) $(BUILD_DIR_TOOLCHAIN)/linux-dev/* $(TOOLCHAIN_DIR)/
139 $(BUILD_DIR_TOOLCHAIN)/linux \
140 $(BUILD_DIR_TOOLCHAIN)/linux-dev
143 $(eval $(call HostBuild))